NOVA | May 2023

North Atlantic right whales are among the most critically endangered large ocean mammals. With fewer than 350 remaining as of 2023, they could be extinct within 20 years. But teams of marine biologists and whale rescuers are determined to help save the species.
In January 2022, one of the most powerful volcanic eruptions in recorded history rocked the islands of Tonga. Join scientists as they investigate what caused the blast, how it spurred a devastating tsunami and if another eruption could be imminent.
Is what you see real? Join neuroscientist Heather Berlin on a quest to understand how your brain shapes your reality and why you can’t always trust what you perceive. In the first hour of this two-part series, learn what the latest research shows about how your brain processes and shapes the world around you, and discover the surprising tricks and shortcuts your brain takes to help you survive.
Are you in control, or is your brain controlling you? Dive into the latest research on the subconscious with neuroscientist Heather Berlin. Sleepwalking, anesthesia, game theory and more reveal surprising insights in this eye-opening journey to discover what’s driving your decisions.